Auxiliary air-intake mechanism



.H. TEEGAN AUXILIARY AIR; INTAKE MECHANISM Filed May 23. 1921 Patented July 22, 1924.

v 1,502,410 STATES "PATENT OFFICE;

HARRY TEEGAN, on'nEs MOINES, 'IowA.

AUXILIARY AIR- NTAKE MECHANISM? Application filed May23, 1821. Serial No. .'471;828.-

atmospheric air may be injected into and within the fuel mixture immediately prior to itsentrance to the cylinders of an internal combustion engine.

A further'object of this invention is to provide improved means for delivering atmospheric air to and distributing it evenly and uniformly relative to the fuel mixture in the form of a'jet or spray.

A further object of this invention is to provide an improved aumhary a r mechanism capable of being 'used also as a priming device for starting an internal combustion engine.

A further object of this invention is to" provide an improved vauxiliary air inlet mechanism capable of being used to introduceto the cylinders of'an internal combustion engine a fluid such as a priming vor cleaning medium; A further object of this "invention 1s to provide a device of thecharacter-described equipped with an improved valve mechanism under manual control.

With these and other objects in view my 4 invention consists in the construction, arrangement and combination of elements hereinafter set forth, ointed out in my claims and illustrated by the accompanying drawing, in which- Figurel is a side elevationillustrating a portion of an internal combustion engine equipped with my improved mechanism. Figure 2 is a side elevation of the distributing member, partly-in section centrally and longitudinally thereof. Figure 3 is a crosssection on the line 3-3 of Figure 2 and showing the supply pipe connected with the distributing member. Figure 4 is a face view of the valve chamber with the valve plate removed. Figure 5 is an inner face view of the valve plate detached. Figure 6 is a face View of the valve chamber and plate assembled, dotted lines indicating various positions ofth'e groove of the valve plate with respect to the ports of the chamher. Figures .2 110 .6 inclusiveare on a Qseale enlarged relative :to Figure 1. a a I In the construction of the 'mechanism ias shown the numeraI lO designates a distribut- -ing member which is, relatively narrow and .fiat and is preferably of such general ;,shape as to fit between and conform in outline to the flanges Hand 12 of a carbureter .13 and intake manifold .14 iof an internal loombustion engine, which flanges usually are placed in contacting position :and secured t'ogether .by means of bolts 15, or machine screws; and said distributing member .is

' formed near its ends with-wholes 1.6 toreceive loosely said boltsor'screws. The distributingmember 10 is :formed in its central portion 'witha circular holel7 extending .therethrough and adapted to register with the openings of the flanges V11, 12-and form a continuation ofthezpassage between fuel mixture. passes Yon its Way from the carbureter to the manifold and thence to the engine cylinders; The distributing member 10' alsois formed with an annular groove or channel 18 circumferentially ,of'

:the carburetorand manifold, through which i nular groove or channel 18', said lining :preferably extending entirely through saidmemberand flushatits ends with the sidewalls thereof- .The flining.19 is :formed with ;a central circumferential row: of .jet openings 20 of. sinall diameter. extending through it and forming a means, of'comm'unication frolntlie Jgroove'or channel 18 toathe central hole 17, and consequently to .the path traversed by 1 the fuel mixture. The distributing member 10 is formed near one end with an extension '21 projecting'beyond its body outlineand beyond the margins of the flanges 11 and 12 between which ,it is confined, and said extension isformed'with a tapped hole 22 extendingtherethrough. Thedistributing member 10 may be formed withbosses 23 011 opposite" sides of the extension 21 aroundtheopposite endsof the tapped'hole 22, whereby thelengthiofisaid hole is increased relative to the thickness of the member :and, extension: A 7 port or channelTQl is'iformed in the distributing member 10 and the extension ;thereofvand forms a means of communication between the tappedhole 22 and the annular groove or channel .181 1' 7 A valve chamber is provided and v1s formed of a base 25 and ri1n26 extending in one direction therefrom and of circular form. The chamber also is formed with a peripheral flange 27 at its base adapted to contact with the surfaceof a dash 28 or instrument board of a vehicle on which the device is to be used, and secured in position by screws passing through holes 29 in said flange. .The valve chamber is formed with a central hole 30 extending through its base and with a plurality of ports extending through said base between said central hole and the rim 26, said ports in this instance .being three in number and designated by the :numerals 31, 32 and33. "A valve plate 34 is 'rovided, of circular form and adapted 'to ht within the rim 26 ofthe. chamber with it's'inner face in contact with the base 25, saiduplate preferably being formed with a peripheralfiange 35 overlapping the outer -margin of the rim 26 of the valve chamber.

The valve plate 34 is formed with a central hole 36 and is pivoted for'rotary oscillation on a screw or bolt 37 extending therethrough .and-through the central hole 30 of the cham- .ber'base-25,- and secured by a nut 38. The

valve plate 34 is formed on its inner face with an" arcuate groove or channel 39, spanning approximately one-hundred eighty de- 9 i grees, adapted to be so positioned as to proxvid'emeans of communication between any selected two of the ports 31, 32, 33 of the ,chamber base 25. The valve plate 34 preferably is provided on its outer face with 1 finger lugs 40 to facilitate manual operation chamber.

thereof.- I

One of the ports of the valve chamber base 25, in this instance 31, provides means for admitting atmospheric air to the valve This port preferably opens .through the dash 28 of the vehicle, communicating with a pipe such as 41 projecting'forwardly through said dash, so that -air'is admitted'thereto from the engine hood rather than from the drivers compartment, to prevent annoyance to the occupants of of the ports, such as 32, communicates with the vehicle because of any hissing or unpleasant noises which might be produced by the entrance of air to the chamber. Another a supply pipe .42 extending forwardly through the dash 28 and connected by a union 43 or coupling to an elbow 44 threaded into the tapped hole 22 of the extension of the distributing member 10, A plug 45 :is screwed into the opposite end of the from tapped hole 22 and prevents escape of air the distributing member 7 through the jet openings 20. The other of ':'the ports of-the valve chamber, in this instance 33, communicates with a passage or channel 46 formed radially in the base25 except and. opening through the uppermost part of the run 26. 7, As the inner face of the valve plate 34 contacts with the base 25 of the valve chamber, thereis'no communication between'the various ports of said base except bymeans of the arcuate groove or channel 39 of said plate. ,When'it is. desired to introduce atmospheric air to the fuel mixture auxiliary to the common means, the valveplate 34 is turned to such position; that the arcuate groove or channel 39 overlaps and forms a connection or communication between the.

ports 31 and 32, as indicated by dotted lines in the lower portion of Figure 6.. When the valve plate is so arranged the suction action of the engine, when operating, causes air to bev drawn into the valve chamber through the inlet pipe 41, through the groove or channel 39 to the port-32 and thence through the pipe 42 andrelbow 44 to thehole 22 of the distributing member, whence it passes by the port or channel 24 to the annular groove or channel 18 and through the jet openings 20 of thew-lining 19,to the passage 17 through which the fuel mixture is moving from the carbureter to the engine cylinders; andxthe atmospheric air is thus directed from all sides, in a fine jet or spray, into and caused to mixiintimately with the fuel mixture. ;Thus under certain conditions considerable 'saving of fuel may be accomplished and greater eificiency be obtained;

When no additional ormauxiliary atmospheric air is desired in the fuel mixture the valve plate isso turned as to form communication between the ports 31 and 33, as

indicated by dotted linesfat the left ofFig-' and 32, as indicated by dotted; lines at the right in Figure 6. Priming fluid, such as high, test gasoline, ether or the like, may be introduced to the port or passage 46 as by means of a squirt can, and passes through said passage to the port 33, through the 'arcuate groove or channel 39' to'the port 32 and thence to the engine cylinders, as previously described with relation to the passage of atmosphericair.

At times it may bedesirable to use the mechanism to assist in'the operation of introducing a cleaning or carbon-removing liquid tothe engine cylinders, in which eventthe valve plate is turned to the posi tion first described, where it forms a com- .munication between the ports 31 and The inner end of the inlet pipe 41 preferably is turned down as shown in Figure 1 so that it may be caused to enter the neck of a bottle or other container of the fluid to be used, and the suction action of the running engine operates to withdraw the liquid from the container through the mechanism in the manner previously described with respect to the passage of atmospheric air.

The distributing member may be mounted in any position to adapt it for use on any make. of engine or motor vehicle, either horizontally or vertically and with the extension 21 projecting in either direction, as the elbow 44 may be mounted in either end of the tapped hole 22 and the plug 45 employed to close the opposite end.

Lugs 47, 47 may be located in spaced positions circumferentially of the valve plate 34, to guide the operator in properly positioning said plate, as by engagement with a pin 48 projecting beyond the rim 26 of the chamber. a

I claim as my invention 1. In a device of the class described, a

valve chamber formed with three ports, one of said ports being adapted t admit atmospheric air and the other to admit a liquid to said chamber,the third of said ports being connected to an air supply pipe, and a rotary valve member formed with an arcuate channel adapted to form communicating means selectively between said third port and the other two.

2. In a device of the class described, a valve chamber formed of a base and a rim, said base having three ports therein, one of said ports being adapted to admit air and another a liquid to said chamber, the third of said ports being connected to a supply pipe, a rotary valve member mounted within said rim and having a face contacting said base, said valve member being formed on its inner face with an arcuate groove adapted to form communicating means selectively between the third port and the other two.

Signed at Des Moines, in the county of Polk and State of Iowa, this 21st day of April, 1921.

HARRY TEEGAN. 

